@article{MV_1974_26_1_a9,
     author = {E. Pap},
     title = {A generalization of the diagonal theorem on a block-matrix},
     journal = {Matemati\v{c}ki vesnik},
     pages = {66 },
     year = {1974},
     volume = {26},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1974_26_1_a9/}
}